Buffalo needs to keep the 4-3, the only 3-4 front seven personnel that make sense currently on the roster are Maybin at OLB (drafting him still pisses me off in that it made no sense), Posluszny at ILB, and Williams playing the undertackle/defensive end position, other than that maybe mitchell comes back and plays ILB, Ellison might (and thats a stretch) be able to fill the other OLB spot, Stroud would have to fill in at the other DE spot, meaning best case scenerio we need a nose tackle to come in right away, Stroud to hold up, Mitchell to come back health, Ellison to hold up, and every one to stay healthy and "get it" (the defense).
Seymour is a pipe dream, the Raiders just gave up what a first round pick for him? If they let him go they would prove themselves to have the IQ of a slug, or dead man (Al Davis would apply).
If we keep the 4-3 the holes on defense can be address easier than switching to the 3-4 and almost starting over from scratch, which would be a possibility if we did not essentially have to rebuild most of the offense as well.
I would agree that Wilson should be starting next year, and throwing a couple back yesterday eased the pain a little...